| Message ID | 1511804735-16238-1-git-send-email-jorge.ramirez-ortiz@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | [PATCHv3] env: enable accessing the environment in an EXT4 partition | expand |
On Mon, Nov 27, 2017 at 06:45:35PM +0100, Jorge Ramirez-Ortiz wrote: > the following commit enables accessing the environment in an ext4 > partition. In order to do that, some definitions need to be added to > include/configs/board_x.h file. > > For example to store the environment in a file named "/uboot.env" in MMC > "0", where partition "1" contains the EXT4 filesystem, you should define: > > EXT4_ENV_DEVICE_AND_PART "0:1" > EXT4_ENV_INTERFACE "mmc" > EXT4_ENV_FILE "/uboot.env" We have examples of these kind of configurations in Kconfig today, please add them as well so the feature can be fully used, thanks! -- Tom
On 11/27/2017 06:49 PM, Tom Rini wrote: > On Mon, Nov 27, 2017 at 06:45:35PM +0100, Jorge Ramirez-Ortiz wrote: >> the following commit enables accessing the environment in an ext4 >> partition. In order to do that, some definitions need to be added to >> include/configs/board_x.h file. >> >> For example to store the environment in a file named "/uboot.env" in MMC >> "0", where partition "1" contains the EXT4 filesystem, you should define: >> >> EXT4_ENV_DEVICE_AND_PART "0:1" >> EXT4_ENV_INTERFACE "mmc" >> EXT4_ENV_FILE "/uboot.env" > We have examples of these kind of configurations in Kconfig today, > please add them as well so the feature can be fully used, thanks! > oops, yeah, sorry about that. ok doing it now
On 11/27/2017 06:51 PM, Jorge Ramirez wrote: > On 11/27/2017 06:49 PM, Tom Rini wrote: >> On Mon, Nov 27, 2017 at 06:45:35PM +0100, Jorge Ramirez-Ortiz wrote: >>> the following commit enables accessing the environment in an ext4 >>> partition. In order to do that, some definitions need to be added to >>> include/configs/board_x.h file. >>> >>> For example to store the environment in a file named "/uboot.env" in >>> MMC >>> "0", where partition "1" contains the EXT4 filesystem, you should >>> define: >>> >>> EXT4_ENV_DEVICE_AND_PART "0:1" >>> EXT4_ENV_INTERFACE "mmc" >>> EXT4_ENV_FILE "/uboot.env" >> We have examples of these kind of configurations in Kconfig today, >> please add them as well so the feature can be fully used, thanks! >> > oops, yeah, sorry about that. ok doing it now just checking but you realize that I will have to modify env/ext4.c to use these new CONFIG_ just like we do for FAT? for EXT4 we were using include/configs/.h instead as described in the commit (so the feature was fully functional, just slightly different to FAT when defining the variables). ok?
On Mon, Nov 27, 2017 at 07:06:02PM +0100, Jorge Ramirez wrote: > On 11/27/2017 06:51 PM, Jorge Ramirez wrote: > >On 11/27/2017 06:49 PM, Tom Rini wrote: > >>On Mon, Nov 27, 2017 at 06:45:35PM +0100, Jorge Ramirez-Ortiz wrote: > >>>the following commit enables accessing the environment in an ext4 > >>>partition. In order to do that, some definitions need to be added to > >>>include/configs/board_x.h file. > >>> > >>>For example to store the environment in a file named "/uboot.env" in > >>>MMC > >>>"0", where partition "1" contains the EXT4 filesystem, you should > >>>define: > >>> > >>> EXT4_ENV_DEVICE_AND_PART "0:1" > >>> EXT4_ENV_INTERFACE "mmc" > >>> EXT4_ENV_FILE "/uboot.env" > >>We have examples of these kind of configurations in Kconfig today, > >>please add them as well so the feature can be fully used, thanks! > >> > >oops, yeah, sorry about that. ok doing it now > > just checking but you realize that I will have to modify env/ext4.c to use > these new CONFIG_ just like we do for FAT? > for EXT4 we were using include/configs/.h instead as described in the commit > (so the feature was fully functional, just slightly different to FAT when > defining the variables). > > ok? Yes, we need to move them to CONFIG_xxx and have them in Kconfig. And we should rename them to CONFIG_ENV_EXT4_xxx while at it. I think I had to do this when migrating FAT env support and left EXT4 out as there were no in-tree users at the time so it fell off my TODO list. Thanks! -- Tom
diff --git a/env/Kconfig b/env/Kconfig index 2477bf8..09309ab 100644 --- a/env/Kconfig +++ b/env/Kconfig @@ -81,6 +81,13 @@ config ENV_IS_IN_FAT - CONFIG_FAT_WRITE: This must be enabled. Otherwise it cannot save the environment file. +config ENV_IS_IN_EXT4 + bool "Environment is in a EXT4 filesystem" + depends on !CHAIN_OF_TRUST + select EXT4_WRITE + help + Define this if you want to use the EXT4 file system for the environment. + config ENV_IS_IN_FLASH bool "Environment in flash memory" depends on !CHAIN_OF_TRUST diff --git a/env/env.c b/env/env.c index 76a5608..7455632 100644 --- a/env/env.c +++ b/env/env.c @@ -32,6 +32,8 @@ static enum env_location env_get_default_location(void) return ENVL_EEPROM; else if IS_ENABLED(CONFIG_ENV_IS_IN_FAT) return ENVL_FAT; + else if IS_ENABLED(CONFIG_ENV_IS_IN_EXT4) + return ENVL_EXT4; else if IS_ENABLED(CONFIG_ENV_IS_IN_FLASH) return ENVL_FLASH; else if IS_ENABLED(CONFIG_ENV_IS_IN_MMC)